The iPhy user interface. The user is viewing the "Add Sequences" tab. The interface shows the current user name (1) and a set of summary statistics about the dataset (2). A modified taxonomy has been selected (3) which is displayed in the taxonomy panel (4). The user has expanded several nodes of the taxonomy and selected several nodes. Sequences belong to the selected nodes, or their descendants, will be added to the current dataset based on either annotation (5) or similarity to known sequences (6). From this panel the user can also upload new data files (7).